BMW 340i xDrive Horn Relay Replacement at your home or office.

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Horn Relay Replacement Service

How much does a Horn Relay Replacement cost?

On average, the cost for a BMW 340i xDrive Horn Relay Replacement is $107 with $12 for parts and $95 for labor. Prices may vary depending on your location.

CarServiceEstimateShop/Dealer Price
2016 BMW 340i xDriveL6-3.0L TurboService typeHorn Relay ReplacementEstimate$139.61Shop/Dealer Price$163.27 - $194.86
2017 BMW 340i xDriveL6-3.0L TurboService typeHorn Relay ReplacementEstimate$119.61Shop/Dealer Price$135.78 - $161.76
Show example BMW 340i xDrive Horn Relay Replacement prices

What is the Horn Relay all about?

The horn relay attaches a low power circuit to an electromagnet, which operates a mechanical switch. That switch either opens or closes a circuit that carries a higher power, which causes the horn to sound. There is a low power circuit running to your car’s steering wheel, and when it is activated, the horn sounds. When you release the horn button, the low power circuit is opened and the power level of the relay drops, silencing the horn.

Keep in mind:

  • You are required by law to have a working horn in your car.
  • Your car horn is a safety mechanism that allows you to warn other drivers of potential danger.

How it's done:

  • The vehicle battery is disconnected
  • The horn relay position is identified
  • The new horn relay and wiring are installed
  • The battery is reconnected
  • The repair is verified and the vehicle horn is tested for proper operation

Our recommendation:

If your horn isn’t working properly, you have no way of alerting another driver that he or she is about to collide with your vehicle, and you have no way of telling other drivers of any dangers further down the road. Our expert mechanics can diagnose any problems with your car horn, and if necessary, can replace the horn relay for you.

What common symptoms indicate you may need to replace the Horn Relay?

  • You press the horn button and nothing happens
  • You press the horn button but all you hear is a click
  • Horn only works sometimes

How important is this service?

Your horn is your first line of defense when it comes to problems in traffic. With an inoperable horn relay, your horn won’t work at all. If your horn isn’t working properly, get one of our expert mechanics to immediately correct the problem.

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Meet some of our expert BMW mechanics

Real customer reviews from BMW owners like you.

Excellent Rating

(6,667)

Rating Summary
6,214
206
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6,214
206
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44
143

Andrian

32 years of experience
185 reviews
Andrian
32 years of experience
BMW 340i xDrive L6-3.0L Turbo - Pre-purchase Car Inspection - Pompano Beach, Florida
Thanks for your help Adrian!

Shawn

23 years of experience
171 reviews
Shawn
23 years of experience
BMW 328i L6-3.0L - Ambient Temperature Sensor - Newport News, Virginia
Did his thing

Lucas

21 years of experience
891 reviews
Lucas
21 years of experience
BMW X3 L6-3.0L - Oil Change - Glendale, California
Run a bit late due to his in demand schedule which is understandable. Set up his things right away and does his job efficiently , competently and in timely manner. He is professional and knowledgeable in what he does. He gave heads up of what possible problem might arise in the future. Will definitely use his services next time.

Travis

10 years of experience
175 reviews
Travis
10 years of experience
BMW 750Li V8-4.8L - Coolant Temperature Switch (Sensor) Replacement - Houston, Texas
Great. Satisfactory work.

Excellent Rating

(6,667)

Rating Summary
6,214
206
60
44
143
6,214
206
60
44
143
Number of BMW services completed
73337+
services done by our mechanics
TOTAL NUMBER OF EXPERT BMW MECHANICS
1100+
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